I was in germany using a uniconnect sim card that my office had given me for communication purposes. Communication would have happened only when the calls would have gotten through or received. I was communicating texting all the while cz the phone barely caught signals. I even contacted the customer care and they blamed it all on my handset. On getting back, they slapped a huge bill for calls from my number, even when i had made none, thanks to their great coverage!! Since my offce was handling the matter i was out of the mess, but i can assure you that as a user of Uniconnect, i will never use it again.